Pull-off aid for drawing threads from bobbins
    4.
    发明授权
    Pull-off aid for drawing threads from bobbins 失效
    拉线螺丝从线轴上拉

    公开(公告)号:US4502644A

    公开(公告)日:1985-03-05

    申请号:US286599

    申请日:1981-07-24

    申请人: Dieter Schacht

    发明人: Dieter Schacht

    CPC分类号: D01H1/108

    摘要: A pull-off aid (9) for threads drawn overhead from upper and lower bobbins (4,3) comprises a disc of adjustable diameter, the disc periphery engaged by the thread from the lower bobbin (3) being formed by overlapping petal-like segments (10) radially displaceably guided between a lower support disc (11) and an upper carrier disc (12). The inner edges of the segments engage a cam (21) fixed to a bobbin carrier (2). The adjustable diameter disc (9) is received on the lower bobbin core which rests on a centering sleeve (6). The latter is supported by a spring (5) so that as the bobbins become smaller, and therefore lighter, the adjustable diameter disc (9) is lifted by the spring (5) so that the inner edges of the segments ride up the cam (21) and are gradually retracted by a garter spring or rubber ring (18). The diameter of the disc (9) is thereby gradually reduced as the diameter of the bobbins becomes smaller.

    摘要翻译: 用于从上部和下部筒管(4,3)顶部抽出的螺纹的拉脱辅助件(9)包括可调节直径的盘,与下部筒管(3)的螺纹啮合的圆盘周边通过重叠的花瓣状 在下支撑盘(11)和上承载盘(12)之间径向移动地引导的段(10)。 分段的内边缘接合固定在筒管架(2)上的凸轮(21)。 可调节直径盘(9)被容纳在放置在定心套(6)上的下筒管上。 后者由弹簧(5)支撑,使得当线轴变小并且因此更轻时,可调直径的盘(9)被弹簧(5)提升,使得节段的内边缘向上凸起 并且通过一个卡箍弹簧或橡胶圈(18)逐渐缩回。 因此,随着筒管的直径变小,盘(9)的直径逐渐减小。